#include<stdio.h>
int main()
{
	double x,sum=0.0;
        int n=2;
	do
	{
	scanf("%lf",&x);
	while(x-sum>0)
	{sum=sum+1.0/n;
	 n++;
	}
	printf("%d card(s)\n",n-2);
	}while(x!=0.00);
	return(0);
}
哪里错了？